Samuel a



S A. HALLADAY.

. Heating Drum. N0. 63,720. Patented Apri! 9, 1867 N PETERS.FHOTO-LITHDGRAPHER, WASHINGTON D C SAMUEL A; HALL ADAY, OF MAHRILLA, NEWYORK.

Letters Patent No. 63,720, dated/1pm? 9, 1867.

STOVE PIPE DRUM.

die tigrtnic ninth to iii tiger antes 33mm nit mating and of 1150 5mm.

TO ALL WHOM IT MAY OONOERN:

Be it known that I, SAMUEL A. HALLADALof Marrilla, in the county oiErie,and State of New York, have invented a new and useful Improvement 'inHeating Rooms; and I do hereby declare that the following afull, clear,and. exact description thereof, which will enable those skilled in theart to make and use tho-same, reference being had to the accompanyingdrawings, forming part of thisspecification.

This invention relates to the manner in which the heated gases andproducts of combustion are retarded and made to part with their calorie;and the invention consists in making the flue through which the smokeand heated gases pass from thestove in a spiral form within a radiatingcylinder, the cylinder itself being annular in form, or having anair-flue'passing through its centre; and in the manner in which theheatedair which passes through the air-flue is controlled; and also in,forming shelves or rims around the cylinder, as will be hereindescribed.

Figure 1 represents a central vertical section of my heater through theline a: :2: of fig. 2, showing the spiral flue, Ste.

Figure 2 is a top view.

Similar letters of reference indicate corresponding parts.

' A represents an inverted hollow arch, which has a short pieccet' pipeattached to it which fits upon the stove. This arch' forms a fluethrough which the gaseous products of combustion are conducted to thespiral flue within the heater. B is the outside drum; 0 is the hot-airflue. This flue commences within the arch A, at b, where the current ofair enters. The current of air is discharged upward through the fine atd, or it is deflected by a damper, and is' made to'talte a lateraldirection. The smoke and heated gases pass up from the stove into theinverted arch A and through the spiral flue D, which occupies theannular space between the drum and the air-flueO, and are discharged,through the collar E, into a pipe which conducts them into the chimney.F is a rod passing through the air-flue C near the top end, upon whichthere is a damper which closes the flue when it is desired to dischargethe heated air into the room where the drum is placed. When the damperis open the air will be conducted into the room above. Through the upperportion of the air-flue 0 (below the damper) there are apertures for thedischarge of the air laterally. G is a ring or band which surrounds theflue C, with apertures through it which correspond with those throughthe flue C, but by turning the band, (which is loose for the purpose,)the apertures through the flue are closed, or partially closed, as maybe desired, so that by regulating the damper and this ring G only aportion of the air may be conveyed to the room above and a portionretained below, if desired. f represents rims or shelves around theoutside of the drum, for the purpose of receiving various plates ordishes containing articles of food which are to be kept warm.

What I claim as new, and desire to secure by Letters Patent, is-

The inverted hollow arch A supporting the heater, its ends connectingthe spiral flue D with the short pip a, for the passage of the productsof combustion, as herein set forth for the purpose specified.

I claim the ring G and the shelves f, in combination with the flue C andthe drum B, as and for the purposes set 'forth.

Witnesses:

Fmuors M.- MILLS, JOHN SIMPSON.

SAMUEL A. HALLADAY.

